Proven Alternatives for Aboveground Treatment of Arsenic in Groundwater PDF Download

Author:
Publisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 72

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Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 69

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Book Description
This issue paper identifies and summarizes experiences with proven aboveground treatment alternatives for arsenic in groundwater, and provides information on their relative effectiveness and cost. The information contained in this paper can also be found in the report Arsenic Treatment Technologies for Soil, Waste, and Water, EPA542-R-02-004 (Ref. 1.12), which provides cost and performance data for additional technologies that can treat arsenic in soil, waste, and water. This paper has been developed jointly by EPA s Engineering Forum and Technology Innovation Office. EPA's Engineering Forum is a group of professionals, representing EPA Regional Offices, who are committed to identifying and resolving the engineering issues related to remediation of Superfund and hazardous waste sites. The Forum is sponsored by the Technical Support Project. In January 2001, EPA published a revised maximum contaminant level (MCL) for arsenic in drinking water that requires public water suppliers to maintain arsenic concentrations at or below 0.010 milligrams per liter (mg/L) by 2006 (Ref. 1.1, 1.9). The revised standard may affect arsenic cleanup goals for groundwater. The information contained in this issue paper can help managers at sites with arsenic-contaminated groundwater to: " Identify proven and effective treatment technologies " Screen those technologies based on effectiveness, treatment goals, site characteristics, and cost " Apply technology and experience from sites with similar remediation challenges " Find more detailed arsenic treatment information using this issue paper as a reference Arsenic is a component of many industrial raw materials, products, and wastes, and is a contaminant of concern in groundwater at many remediation sites.

Author: Bhaskar Sen Gupta
Publisher: Springer Nature
ISBN: 9819747643
Category :
Languages : en
Pages : 449

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Author: Nitish Kumar
Publisher: Springer Nature
ISBN: 3031526147
Category :
Languages : en
Pages : 293

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Author: Gary R. Peyton
Publisher:
ISBN:
Category : Drinking water
Languages : en
Pages : 66

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Author:
Publisher: DIANE Publishing
ISBN: 1428900209
Category : Arsenic wastes
Languages : en
Pages : 132

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Book Description

Author: Zaid K. Chowdhury
Publisher: American Water Works Association
ISBN: 1583212361
Category : Water
Languages : en
Pages : 404

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Book Description

Author: Suiling Wang
Publisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 16

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Book Description
A number of treatment methods have been investigated in the laboratory or full scale to remove arsenic from drinking water and to remediate arsenic-contaminated sites. This paper gives a review on the advanced technologies for the treatment of arsenic-contaminated soils and water. Treatment methods such as oxidation, anion exchange, membrane separation, and adsorption/precipitation have been developed to remove arsenic from drinking water or groundwater. However, further research is needed to find new and more efficient substitute materials for the ion exchange resins, membranes, and adsorbents to improve the treatment and cost efficiencies. A stabilization/solidification method has been demonstrated successfully to contain arsenic in contaminated soils, sediments, and solid wastes. Vitrification is also applicable but may be more expensive due to the high energy requirements. Electrochemical methods based on electrokinetics are emerging. Especially, electrokinetics and electrodialysis are suited for fine-grained soils. Chemical extraction, either in-situ or ex-situ, can be efficient to remove bulk arsenic from contaminated soils and solid wastes. Selection of proper extractants is the key to the success of this method. Bioremediation, phytoremediation, and natural attenuation show great potential for future developments because of their environmental compatibility and cost effectiveness. Generally, it is critical to recognize that no single specific technology may be considered as generally applicable. Combination of existing technologies may provide an efficient and cost-effective treatment alternative. Use of biodegradable and environmentally benign products to enhance the remediation processes should be further investigated.

Author: J. Min
Publisher: IWA Publishing
ISBN: 9781843399346
Category : Science
Languages : en
Pages : 200

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Book Description
Potentially high levels of arsenic, nitrate, and perchlorate are found in water sources throughout the United States. Most treatment technologies for removing these contaminants produce concentrated waste that requires special handling and disposal. Disposal options for these wastes are often limited by local regulations and other site-specific restrictions. Presently, the disposal issue is limiting certain treatment technologies for arsenic, perchlorate, or nitrate. Therefore, innovative alternatives for managing residuals discharge and disposal are needed. The objectives of this project were to develop and validate innovative processes to minimize the production of residuals from treatment processes used to remove arsenic, perchlorate, or nitrate from drinking water.

Author: Jochen Bundschuh
Publisher: CRC Press
ISBN: 0203120175
Category : Nature
Languages : en
Pages : 208

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Book Description
Providing an introduction, the scientific background, case studies and future perspectives of in-situ arsenic remediation technologies for soils, soil water and groundwater at geogenic and anthropogenic contaminated sites. The case studies present in-situ technologies about natural arsenic, specifically arsenate and arsenite, but also about organic arsenic compounds. This work covers geochemical, microbiological and plant ecological solutions for arsenic remediation. It will serve as a standard textbook for (post-)graduate students and researchers in the field of Environmental Sciences and Hydrogeochemistry as well as researchers, engineers, environmental scientists and chemists, toxicologists, medical scientists and even for general public seeking an in-depth view of arsenic which had been classed as a carcinogen. This book aims to stimulate awareness among administrators, policy makers and company executives of in-situ remediation technologies at sites contamined by arsenic and to improve the international cooperation on the subject.